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From: Chi Zhiling <chizhiling@163.com>
To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Namjae Jeon <linkinjeon@kernel.org>,
	Sungjong Seo <sj1557.seo@samsung.com>,
	Yuezhang Mo <yuezhang.mo@sony.com>,
	Chi Zhiling <chizhiling@kylinos.cn>
Subject: [PATCH v2 06/13] exfat: remove the unreachable warning for cache miss cases
Date: Thu,  8 Jan 2026 15:49:22 +0800	[thread overview]
Message-ID: <20260108074929.356683-7-chizhiling@163.com> (raw)
In-Reply-To: <20260108074929.356683-1-chizhiling@163.com>

From: Chi Zhiling <chizhiling@kylinos.cn>

The cache_id remains unchanged on a cache miss; its value is always
exactly what was set by cache_init. Therefore, checking this value
again is meaningless.

Signed-off-by: Chi Zhiling <chizhiling@kylinos.cn>
---
 fs/exfat/cache.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/fs/exfat/cache.c b/fs/exfat/cache.c
index 0ee4bff1cb35..d51737498ee4 100644
--- a/fs/exfat/cache.c
+++ b/fs/exfat/cache.c
@@ -260,18 +260,7 @@ int exfat_get_cluster(struct inode *inode, unsigned int cluster,
 		return 0;
 
 	cache_init(&cid, EXFAT_EOF_CLUSTER, EXFAT_EOF_CLUSTER);
-
-	if (exfat_cache_lookup(inode, cluster, &cid, fclus, dclus) ==
-			EXFAT_EOF_CLUSTER) {
-		/*
-		 * dummy, always not contiguous
-		 * This is reinitialized by cache_init(), later.
-		 */
-		WARN_ON(cid.id != EXFAT_CACHE_VALID ||
-			cid.fcluster != EXFAT_EOF_CLUSTER ||
-			cid.dcluster != EXFAT_EOF_CLUSTER ||
-			cid.nr_contig != 0);
-	}
+	exfat_cache_lookup(inode, cluster, &cid, fclus, dclus);
 
 	if (*fclus == cluster)
 		return 0;
-- 
2.43.0


  parent reply	other threads:[~2026-01-08  7:50 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-08  7:49 [PATCH v2 00/13] Enable multi-cluster fetching for exfat_get_block Chi Zhiling
2026-01-08  7:49 ` [PATCH v2 01/13] exfat: add cache option for __exfat_ent_get Chi Zhiling
2026-01-08  7:49 ` [PATCH v2 02/13] exfat: support reuse buffer head for exfat_ent_get Chi Zhiling
2026-01-08  7:49 ` [PATCH v2 03/13] exfat: improve exfat_count_num_clusters Chi Zhiling
2026-01-08  7:49 ` [PATCH v2 04/13] exfat: improve exfat_find_last_cluster Chi Zhiling
2026-01-08  7:49 ` [PATCH v2 05/13] exfat: remove the check for infinite cluster chain loop Chi Zhiling
2026-01-08  7:49 ` Chi Zhiling [this message]
2026-01-08  7:49 ` [PATCH v2 07/13] exfat: reduce the number of parameters for exfat_get_cluster() Chi Zhiling
2026-01-08  7:49 ` [PATCH v2 08/13] exfat: reuse cache to improve exfat_get_cluster Chi Zhiling
2026-01-08  7:49 ` [PATCH v2 09/13] exfat: remove handling of non-file types in exfat_map_cluster Chi Zhiling
2026-01-08  7:49 ` [PATCH v2 10/13] exfat: support multi-cluster for exfat_map_cluster Chi Zhiling
2026-01-13  6:37   ` Yuezhang.Mo
2026-01-13  8:53     ` Chi Zhiling
2026-01-13 10:26       ` Yuezhang.Mo
2026-01-14  3:07         ` Chi Zhiling
2026-01-08  7:59 ` [PATCH v2 11/13] exfat: tweak cluster cache to support zero offset Chi Zhiling
2026-01-08  7:59   ` [PATCH v2 12/13] exfat: return the start of next cache in exfat_cache_lookup Chi Zhiling
2026-01-08  7:59   ` [PATCH v2 13/13] exfat: support multi-cluster for exfat_get_cluster Chi Zhiling

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